Q. We purchased an RF skin-tightening machine three years ago based on your articles. Do you know how long these machines last or, in other words, do they lose their effectiveness over a certain period of time?

—R.K., Minneapolis

A. For those who are unfamiliar, RF skin-tightening machines use radio-frequency energy to heat up the skin under the surface, stimulating production of elastin and collagen and providing a natural face-lift. It really works, and I have used one for years. If your machine is still heating up to the same temperature it should be just as effective as it was before. However, after approximately age 75 your body's response starts going down because your skin does not produce elastin and collagen as effectively. If you are under 75, it is good to begin a program early to give yourself a head start, building up a good base to maintain as you get older.

I have had many requests for new skin treatment machine recommendations and I finally have one, and it is superb indeed. The JMOON NouvelleSkin Facial Toning Device M30U uses microcurrent stimulation, red LED light and near-infrared light to firm and tone your skin, remove wrinkles and touch up around the eyes. I just started using one and so far I like it more than any machine I have used in the past. It is rechargeable and cordless, and treatment only takes six minutes. My corded machine took a full 20 minutes, so finishing up in six minutes is a huge improvement. I quickly felt the effects of the device, and the supplied gel is much less greasy than others I have used.

The JMOON M30U is $499 and includes one tube of gel. The current discount code JMOON100 reduces the price $100 to $399, with free shipping and a money-back guarantee. jmoonglobal.com

Q. I love my TLOVII toothbrush. Where can I buy replacement heads, or do you know of another brand that will fit? Amazon once had them, but no longer.

—M.A., Murrysville, Pennsylvania

A. Unfortunately, brushheads are no longer available and it is time for a new toothbrush. Your TLOVII was last sold four years ago, so it might be time to upgrade anyway. Sonic toothbrushes have improved a great deal since then!

The best deal on the market right now is the Sakyproral AI Electric Toothbrush with Smart Display. I've received great reader feedback about the toothbrush and the company, and it is very highly rated on Amazon. It has multiple modes, brushheads with comfortable high-end bristles and a display that shows where you missed. It is available in four colors and there is a package that includes six brusheads and a travel case that sells for $49.99. The code WINTERSHOP at checkout on Amazon reduces it from $49.99 to only $35.99. And of course, it makes a great gift too! It is something that will be used every day, and it makes your teeth feel like you just had them cleaned at the dentist.

Lutris Monte-Carlo Cordless Lamp update: The Lutris Monte-Carlo has been a smash hit and the Lutris Black Friday 60% off sale cleared out their U.S. warehouse extremely quickly. Though sold out you can now preorder at lutris.com and your lamp will ship immediately when they are restocked in mid-January. Thankfully, the 60% off code BLACKFRIDAY will be honored for these preorders. Though it won't arrive for the 2025 holiday season, getting this beautiful, extremely useful $149 lamp for $59.60 is wonderful any time of the year, as is treating yourself to a luxury product during times when life seems expensive. Highly recommended!

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